A Cross-Layer Location-Based Approach for Mobile-Controlled Connectivity

We investigate into the potentiality of an enhanced Power and Location-based Vertical Handover (PLB-VHO) approach, based on a combination of physical parameters (i.e., location and power attenuation information), for mobile-controlled connectivity across UMTS and WLAN networks. We show that the location information in a multiparameter vertical handover can significantly enhance communication performance. In the presented approach a power attenuation map for the visited area is built and kept updated by exploiting the information sharing of power measurements with other cooperating mobile devices inside the visited networks. Such information is then used for connectivity switching in handover decisions. The analytical model for the proposed technique is first presented and then compared with a traditional Power-Based approach and a simplified Location-Based technique. Simulation results show the effectiveness of PLB-VHO approach, in terms of (i) network performance optimization and (ii) limitation of unnecessary handovers (i.e., mitigation ofping-pong effect)

BUILDING BRIDGES FOR INNOVATION IN AGEING : SYNERGIES BETWEEN ACTION GROUPS OF THE EIP ON AHA

The Strategic Implementation Plan of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA) proposed six Action Groups. After almost three years of activity, many achievements have been obtained through commitments or collaborative work of the Action Groups. However, they have often worked in silos and, consequently, synergies between Action Groups have been proposed to strengthen the triple win of the EIP on AHA. The paper presents the methodology and current status of the Task Force on EIP on AHA synergies. Synergies are in line with the Action Groups' new Renovated Action Plan (2016-2018) to ensure that their future objectives are coherent and fully connected. The outcomes and impact of synergies are using the Monitoring and Assessment Framework for the EIP on AHA (MAFEIP). Eight proposals for synergies have been approved by the Task Force: Five cross-cutting synergies which can be used for all current and future synergies as they consider overarching domains (appropriate polypharmacy, citizen empowerment, teaching and coaching on AHA, deployment of synergies to EU regions, Responsible Research and Innovation), and three cross-cutting synergies focussing on current Action Group activities (falls, frailty, integrated care and chronic respiratory diseases).Peer reviewe

Teoria dell’Informazione e Codici

L’informazione, il canale trasmissivo e la sua codifica Codifica di sorgenti discrete, Algoritmi di compressione per dati, voce ed immagini. Codici per la rivelazione e la correzione degli errori (CRC, ARQ e FEC). La trasmissione di codici a blocco su canali binari, Aritmetica modulo 2 e Campi di Galois. Codici a blocco lineari, Codici duali e Codici ciclici Codici a blocco di uso comune: Hamming, MaxLength, Golay, BCH, Reed–Solomon, checksum, CRC Codici convoluzionali, decodifica a massima verosimiglianza e algoritmo di Viterbi hard e soft, interallacciamento, codifica concatenata. Canali numerici: Entropie di canale, Capacità di canale, Disuguaglianza di Fano, Secondo Teorema di Shannon, Funzione esponente d’errore. Turbocodici: Codici convoluzionali recursivi sistematici (RSC), Punturazione, Concatenazione in parallelo, Soft – output Viterbi algorithm (SOVA) e decodifica iterativa

Design and Implementation of a Service Discovery Architecture in Pervasive Systems

The availability of cheap wireless technologies, which can be interconnected through the Internet, has paved the way to a large fruition of (web) services and the convergence of the Internet with mobile handheld devices. A potential market opportunity could become concrete only if users can easily locate and access the available services, thorough support for Service Discovery. There are a number of service discovery protocols and architectures incompatible with each other and sometimes applicable to only specific networks. Often the use of these protocols can be carried out only by experienced users. In this article we will describe an architecture implementing Service Discovery for a Pervasive System, which is simple, effective and compliant with standardization. Whenever a generic user, equipped with his wireless or wired terminal, get access into an IP Network, the Service Discovery service start up finding all the available and suitable services which can be accessed locally or remotely from that access point. This work has resulted in the context of DAIDALOS (Designing Advanced network Interfaces for the Delivery and Administration of Location independent, Optimised personal Services [1]), a project granted in the European 6th Framework Research Programme, within the IST (Information Society and Technology) thematic area

A cross-layer location-based approach for mobile-controlled connectivity

We investigate into the potentiality of an enhanced Power and Location-based Vertical Handover (PLB-VHO) approach, based on a combination of physical parameters (i.e., location and power attenuation information), for mobile-controlled connectivity across UMTS and WLAN networks. We show that the location information in a multiparameter vertical handover can significantly enhance communication performance. In the presented approach a power attenuation map for the visited area is built and kept updated by exploiting the information sharing of power measurements with other cooperating mobile devices inside the visited networks. Such information is then used for connectivity switching in handover decisions. The analytical model for the proposed technique is first presented and then compared with a traditional Power-Based approach and a simplified Location-Based technique. Simulation results show the effectiveness of PLB-VHO approach, in terms of (i) network performance optimization and (ii) limitation of unnecessary handovers (i.e., mitigation of ping-pong effect). Copyright © 2010 T. Inzerilli, et al